-88.83% is the change from 725 to 81
Calculation steps:
[( 81 - 725 ) ÷ 725] x 100 = -88.83%
Formula
Percentage change = [(81 - 725) / 725] x 100
Subtract the new number by the original number
81 - 725 = -644
-644 ÷ 725 = -0.8882758620689655
-0.8882758620689655 x 100 = -88.83%